Content rating is a system used to classify media, such as movies, video games, and television shows, based on their suitability for different audiences. Ratings help consumers make informed choices by indicating the presence of elements like violence, language, or sexual content. Common rating systems include the MPAA for films and the ESRB for video games. These ratings typically use letters or symbols to convey information quickly. For example, a movie rated PG-13 suggests parental guidance is advised for children under 13, while a game rated M is intended for mature audiences. This system aims to protect viewers, especially children, from inappropriate content.